Coffee machine convenient to use

Abstract

The coffee machine convenient to use is characterized in that a sinking groove is formed in the top end face of a box cover, a handle is fixed to the box cover, and the handle is transversely arranged above the sinking groove; a positioning groove is formed in the top end face of the main shell, a locking block is installed on one side of the box cover, a positioning block is fixed to the other side of the box cover, and the box cover is locked and fixed to the outer shell through the locking block. When the locking block is unlocked, the tank cover can be quickly lifted and opened by one hand through the inclined plane guiding design of the positioning block and the positioning groove, a sunken area formed by the sinking groove serves as a force application fulcrum, water flow can be prevented from overflowing during water injection, water adding can be completed without disassembling the water tank, and the water tank is particularly suitable for space limited scenes. After the locking block is locked, the lifting handle is matched with the gravity center vertical line of the water tank and is matched with temporary supporting of the positioning structure, the intuitive operation that the water tank is unloaded once lifted is achieved, the water injection efficiency and the water changing safety are both considered, the operation complexity is reduced through mechanical linkage, and the use experience of different user groups is improved.

Description

Technical Field

[0001] This utility model relates to the field of coffee machine equipment technology, and in particular to a coffee machine that is easy to use. Background Technology

[0002] As an indispensable everyday appliance in modern life, the convenience and functionality of coffee machines directly impact the user experience. With the increasing demand for coffee, users are placing higher demands on the water tank capacity, ease of water refilling, and operational comfort of coffee machines. Traditional coffee machine water tank designs often employ fixed or simple detachable structures, limiting water refilling methods to either directly filling from the top of the tank or refilling after completely disassembling the tank. This simplistic refilling method has several limitations in practical use: for example, when the coffee machine is placed in a cabinet or a confined space, the top water inlet may be inconvenient to fill due to space constraints; and frequent disassembly of the water tank not only increases the number of steps but may also cause wear and tear on the connection between the water tank and the main unit due to repeated plugging and unplugging, leading to problems such as leaks or poor contact.

[0003] In existing technologies, some detachable water tanks improve the handling experience by incorporating handles or recesses. However, the position and structural design of these handles often lack ergonomic considerations. For example, handles are typically fixed to the side wall or top edge of the water tank, requiring users to apply force at an angle when disassembling it. This can easily cause the tank to wobble or even slip due to a shift in the center of gravity, posing a safety hazard. Furthermore, the connection between the water tank and the main unit often relies on simple snap-fit ​​or threaded knobs, requiring precise alignment of the interface during installation, which is cumbersome and lacks stability. When the water tank is not fully locked, water leakage may occur at the connection point due to machine vibration or internal pressure changes, affecting the equipment's lifespan. In addition, traditional water tank lids are mostly flat designs, lacking auxiliary positioning structures. When opening the lid during water filling, users often find it difficult to apply force due to wet hands or a smooth lid surface, especially in emergency water replenishment scenarios, where the inconvenience is even more pronounced.

[0004] More importantly, existing water tank designs are insufficiently adaptable to diverse usage scenarios. For example, in commercial environments, frequent disassembly of large-capacity water tanks increases maintenance burdens; while in home settings, elderly users or those with weaker hand strength may find it difficult to independently replace the water tank due to the handle being too high or the locking mechanism being too tight. Some improvements attempt to enhance convenience by increasing the number of water inlets or optimizing the tank shape, but these do not fundamentally resolve the contradiction between the reliability of the water tank-to-main unit connection and operational efficiency. Furthermore, the stability and sealing of the water tank after installation still rely on the user's subjective judgment, lacking an intuitive feedback mechanism, which may lead to malfunctions caused by improper installation. Therefore, how to achieve quick disassembly and assembly, secure locking, and multi-scenario adaptability of the water tank through structural innovation, while simultaneously improving operational comfort and safety, has become a pressing technical challenge in the coffee machine design field. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide an easy-to-use coffee machine to solve the problem of inconvenience in adding drinking water to coffee machines in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a user-friendly coffee machine, comprising a main outer shell and a detachable water tank, wherein the water tank comprises a body and a lid covering the body; it further comprises a recess, a handle, a locking block, and a matching positioning block and positioning groove; the top surface of the lid has a recess, and a handle is fixed on the lid, the handle being horizontally positioned above the recess; the top surface of the main outer shell has the positioning groove, the locking block is installed on one side of the lid, and the positioning block is fixed on the other side, the lid being locked and fixed to the main outer shell by the locking block.

[0007] In one embodiment of the present invention, an annular groove is further included, the gap between the recess and the inner sidewall of the box cover forms the annular groove, and the sidewall of the box body is engaged in the annular groove.

[0008] The beneficial effects of the above embodiments are as follows: the annular groove is formed by the gap between the recess and the inner side wall of the box cover. After the box body side wall is embedded, it forms a multi-directional limit, which enhances the sealing performance when the box cover is closed and avoids leakage problems caused by the box cover offset when filling water; the snap-fit ​​structure does not require additional fasteners, simplifies the disassembly and assembly steps, and improves the fitting accuracy between the box body and the box cover, reducing the risk of wear after long-term use.

[0009] In one embodiment of the present invention, a groove is provided on the top surface of the handle, and the groove is provided along the length direction of the handle.

[0010] The beneficial effects of the above embodiments are as follows: the groove at the top of the handle extends along the length direction to form a grip surface that conforms to the curvature of the fingers, increasing the contact friction and ensuring a stable grip, especially when the hands are wet; the depth and width of the groove are ergonomically optimized to distribute local pressure during lifting and alleviate hand fatigue during long-term operation.

[0011] In one embodiment of this utility model, the positioning block is a rectangular protrusion, and the positioning groove is a matching concave notch.

[0012] The beneficial effects of the above embodiments are as follows: the matching design of the rectangular protrusion and the concave notch achieves precise pre-positioning of the box cover and the main shell through planar contact, avoiding rotational misalignment during installation.

[0013] In one embodiment of the present invention, the locking block is hinged to one side of the box cover, and the free end of the locking block is locked to the main outer shell.

[0014] The advantages of the above embodiments are as follows: the locking block adopts a hinged design, and the free end is locked to the main shell by rotation, which makes the user operation more consistent. The locking block always fits the main shell, eliminating the risk of loosening caused by vibration.

[0015] In one embodiment of the present invention, a ring-shaped bracket is also included. The ring-shaped bracket is provided at the edge of the bottom of the housing and is fixedly connected to the main outer shell.

[0016] The beneficial effects of the above embodiments are as follows: the ring-shaped bracket is fixedly connected to the main shell to form a multi-point support structure at the bottom of the water tank, which disperses the weight load when the water tank is fully loaded and prevents local deformation.

[0017] In one embodiment of the present invention, the tank body is further provided with a water outlet and a switch valve, the water outlet being located at the bottom of the tank body, and the switch valve being sealed at the water outlet.

[0018] The advantages of the above embodiments are as follows: the water outlet is located at the bottom of the tank, and the water flow is controlled by the switch valve. When the water tank is disassembled, the water outlet is automatically closed to prevent residual water stains from dripping and contaminating the countertop. In addition, the embedded design of the valve body and the water outlet reduces the complexity of the internal piping, lowers the failure rate, and facilitates cleaning and maintenance.

[0019] In one embodiment of this utility model, the switching valve is a push-button check valve.

[0020] The beneficial effects of the above embodiments are as follows: the push-button check valve achieves water flow cut-off through mechanical pressing, without the need for electric drive, and has high reliability. The check valve only allows the water tank to supply water to the main unit in one direction, preventing backflow and contamination of the water quality in the water tank. At the same time, the silicone sealing ring of the valve core is resistant to high temperature aging and extends its service life.

[0021] As described above, the user-friendly coffee machine of this invention has the following advantages: When the locking block is unlocked, the inclined guide design of the positioning block and positioning groove allows the lid to be quickly lifted with one hand. The recessed area formed by the groove serves as a fulcrum for applying force and also prevents water from overflowing during filling. Water can be added without disassembling the water tank, making it especially suitable for space-constrained scenarios. After the locking block is locked, the handle matches the vertical line of the water tank's center of gravity. Combined with the temporary support of the positioning structure, this enables an intuitive "lift and remove" operation of the water tank, avoiding liquid spillage caused by tilting during traditional disassembly. When the lid is closed, it ensures a stable connection and prevents leakage. The pre-alignment function of the positioning block and positioning groove simplifies the installation steps, allowing users to precisely lock it with a gentle push. This design balances water filling efficiency and water change safety, reducing operational complexity through mechanical linkage. It is particularly suitable for high-frequency use and improves the user experience for different user groups. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This utility model provides a schematic diagram of the structure of a user-friendly coffee machine.

[0024] Figure 2 A partial structural diagram of the user-friendly coffee machine provided by this utility model;

[0025] Figure 3 A partial structural diagram of the user-friendly coffee machine provided by this utility model;

[0026] Figure 4 This is a partial structural diagram of the easy-to-use coffee machine provided by this utility model.

[0027] Component designation explanation

[0028] 1. Main outer shell; 2. Box body; 3. Box cover; 4. Settlement trough; 5. Handle; 6. Locking block; 7. Positioning block; 8. Positioning groove; 9. Annular slot; 10. Groove; 11. Annular legs; 12. Water outlet. Detailed Implementation

[0029] This utility model provides an easy-to-use coffee machine. To make the purpose, technical solution and effects of this utility model clearer and more explicit, the following describes this utility model in further detail with reference to the accompanying drawings and examples.

[0030] In the description of this utility model, it should be understood that the terms "up, down, left, right," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and should not be construed as limiting this utility model; in addition, the terms "installation," "connection," etc. should be interpreted broadly, and those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] Please see Figures 1 to 4This utility model provides a user-friendly coffee machine, including a main outer casing 1 and a detachable water tank. The water tank consists of a casing 2 and a detachable lid 3, forming the core water storage unit. The top surface of the lid 3 has a rectangular recess 4 with a depth of 5-8 mm. The long axis of the recess 4 coincides with the central axis of the lid 3, and its inner surface is treated with anti-slip texture to form a contact surface with a friction coefficient of not less than 0.6. A one-piece molded handle 5 is horizontally positioned directly above the recess 4. The handle 5 is injection molded from ABS engineering plastic, and its span is 80%-90% of the length of the recess 4, forming an operating gap of 12-15 mm. The top surface of the main outer casing 1 is machined with an installation area matching the contour of the lid 3. This area has a positioning groove 8 with a depth of 3-5 mm, and its inner wall inclination angle is controlled within the range of 5°-8°.

[0032] A locking block 6 is hinged on one side of the lid 3. The free end of the locking block 6 has a wedge-shaped locking part with an angle of 30°-45°, and a trapezoidal locking hole is provided on the side wall of the main outer shell 1. A rectangular positioning block 7 with a dimensional tolerance controlled within ±0.2 mm is fixed on the other side of the lid 3. The bottom surface of the positioning block 7 has a rounded corner with a radius of 0.5-1 mm to form a transition fit with the positioning groove 8. When the lid 3 is closed, the positioning block 7 is inserted into the positioning groove 8 with a clearance fit.

[0033] The top surface of the handle 5 has a semi-circular ergonomic groove 10 machined along its length. The groove 10 has a radius of 8-10 mm and is covered with a silicone layer with a Shore hardness of 70±5. A ring groove 9 with a width of 1.5-2 mm is formed between the recess 4 and the inner side wall of the lid 3. The top of the side wall of the box body 2 has a gradually thickened snap-fit ​​flange, and its maximum thickness forms an interference fit with the ring groove 9.

[0034] The bottom edge of the tank body 2 is equipped with a ring-shaped support 11, the bottom surface of which is distributed with an array of anti-slip protrusions with a height of 0.5 mm, forming a three-point contact with the positioning protrusion on the bottom of the main outer shell 1. The radial elastic modulus of the ring-shaped support 11 is 5-8 MPa, which can absorb 60%-70% of the impact energy when the water tank is fully loaded. The bottom center of the tank body 2 is equipped with a water outlet 12, which is embedded with a push-button one-way valve. The valve core is made of food-grade silicone material, and its sealing surface has a taper of 60°, forming a line seal structure with the valve seat, which can withstand a water pressure of not less than 50 kPa without leakage.

[0035] The innovation of this invention is specifically reflected in the following combination of technical features: the spatial layout of the sink 4 and the handle 5 forms an operating fulcrum with anti-overflow function; the surface parameters of the groove 10 of the handle 5 are optimized by biomechanics to significantly reduce operating fatigue; the precise fit between the positioning block 7 and the positioning groove 8 realizes pre-guidance for installation, and the combination with the elastic release mechanism of the locking block 6 forms a multi-level locking mechanism; the composite support system constructed by the annular slot 9 and the elastic leg effectively improves the structural stability.

[0036] The push-button check valve employs an asymmetrical flow channel design, with its inlet cross-sectional area being 30% larger than that of the outlet 12, ensuring that the valve core closure action is completed within 0.1 seconds. The line contact structure of the valve core sealing surface, combined with the elastic memory properties of the silicone material, maintains a sealing pressure attenuation rate of no more than 5% after 100,000 opening and closing cycles. The spiral guide grooves on the inner wall of the outlet 12 reduce water flow turbulence, controlling the water flow fluctuation range within ±5%, effectively improving the consistency of coffee extraction.

[0037] In summary, this user-friendly coffee machine allows the user to directly lift the lid 3 via the handle 5 when the locking block 6 is unlocked. At this time, the connection between the lid 3 and the body 2 relies on the precise guidance achieved through the cooperation of the positioning block 7 and the positioning groove 8. During the process of the positioning block 7 embedding into the positioning groove 8 at the top of the main outer shell 1, its inclined or arc-shaped contour automatically corrects the installation angle, eliminating the need for repeated adjustments by the user to complete the initial alignment of the lid 3 and the main outer shell 1. This allows for quick water filling without disassembling the water tank: the user only needs to lift the handle 5 with one hand to open the lid 3. The recessed area formed by the groove 4 serves as a fulcrum for finger application and prevents water from overflowing onto the surface of the lid 3 during filling, making it particularly suitable for single-handed operation in confined spaces. In addition, the handle 5 above the sink 4 forms a double anti-slip area across the structure, allowing the user's palm to naturally fit into the gap between the handle 5 and the sink 4. Even if the hand is wet or the force is applied in an inclined direction, the user can still hold the lid 3 firmly, effectively solving the problem of traditional flat lids 3 being easy to slip off.

[0038] When the water tank needs to be disassembled for deep cleaning or water change, the linkage design between the handle 5 and the water tank structure in the locked state of the locking block 6 further optimizes the operating experience. The handle 5 adopts an integrated design with an arc-shaped grip and a curved transition at the top of the tank body 2. Its position has been ergonomically calculated to ensure that the user's center of gravity is always vertically downward when lifting the water tank, avoiding problems such as water tank tilting and liquid spillage caused by the torque imbalance of traditional side-mounted handles 5. At the same time, the continuous engagement of the positioning block 7 and the positioning groove 8 provides auxiliary support during water change. Even if the locking block 6 is completely disengaged, the water tank can still maintain a temporary connection with the main outer shell 1 through the positioning structure, preventing the water tank from accidentally falling due to accidental contact.

[0039] When the water tank is filled and reinstalled into the main casing 1, the pre-positioning function of the positioning block 7 and the positioning groove 8 ensures that the locking block 6 and the locking hole are quickly aligned. The user only needs to gently push the casing 2 to lock it, completely eliminating the need for repeated adjustments due to misalignment. Furthermore, the clever spatial layout of the recess 4 and the handle 5 utilizes the redundant area at the top of the lid 3. Without increasing the overall volume, structural innovation achieves multiple optimizations: splash prevention at the water inlet, comfortable grip on the handle 5, and convenient opening and closing of the lid 3. This integrated design not only reduces the complexity of production and assembly but also extends the service life by reducing exposed moving parts, making it particularly suitable for high-frequency commercial applications. In summary, this structural system, through mechanical linkage and spatial reconstruction, ensures the reliability of the coffee machine's basic functions while truly achieving a user experience upgrade of "no disassembly required for water filling and easy water change." Therefore, this utility model effectively overcomes the various shortcomings of existing technologies and has high industrial application value.

[0040] It is understood that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of this utility model, and all such substitutions or changes should fall within the protection scope of this utility model.

Claims

1. A coffee maker for ease of use comprising a main housing and a removable water tank, characterised in that, The water tank comprises a tank body and a tank cover arranged on the tank body; further comprises a sink, a handle, a locking block and a matched positioning block and a positioning groove; The top surface of the tank cover is provided with a sink, and the handle is fixed on the tank cover and horizontally arranged above the sink; the top surface of the main shell is provided with the positioning groove, one side of the tank cover is provided with the locking block, and the other side is provided with the positioning block, and the tank cover is fixed on the main shell by the locking block.

2. The coffee maker for easy use according to claim 1, characterized in that Further comprises an annular clamping groove, the gap between the sink and the inner wall of the tank cover forms the annular clamping groove, and the side wall of the tank body is clamped in the annular clamping groove.

3. The coffee maker for easy use according to claim 1, characterized in that, The top surface of the handle is provided with a groove, and the groove is arranged along the length direction of the handle.

4. The coffee maker for easy use according to claim 1, characterized in that, The positioning block is a rectangular protrusion, and the positioning groove is a matched concave notch.

5. The coffee maker for easy use according to claim 1, characterized in that, The locking block is hinged to one side of the tank cover, and the free end of the locking block is locked on the main shell.

6. The coffee maker for easy use according to claim 1, characterized in that, Further comprises an annular foot, the edge of the bottom of the tank body is provided with the annular foot, and the annular foot is fixedly connected with the main shell.

7. The coffee maker of easy use according to claim 1, characterized in that, The tank body is further provided with a water outlet and a switch valve, the water outlet is located at the bottom of the tank body, and the switch valve is sealed at the water outlet.

8. The coffee maker for easy use according to claim 7, characterized in that The switch valve is a press type one-way valve.

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